I am so sorry that I haven't posted in ages, but things have been a bit crazy concerning my internet, and then I went away for a week and a half, before I could ask someone to take over. I feel really awful for not telling everyone that there wouldn't be a word of a day for a while, but it was out of my control. I'm back, though, so your words will come back.
1. anxious or concerned (usually fol. by about, for, etc., or a clause): solicitous about a person's health.
2. anxiously desirous: solicitous of the esteem of others.
3. eager (usually fol. by an infinitive): He was always solicitous to please.
4. careful or particular: a solicitous housekeeper.
While she said that she was unafraid for her sister, the solicitous look on her face gave away how anxious she was on her behalf.